Window-bar



(No Model.)

K. KUENZ'EL.

. WINDOW BAR.

No. 377,624. Patented Febr'l, 18-88.

1 OM4J UNITED STATES PATENT OFFICE.

KARL KUENZEL, OF KENSINGTON, ILLiuoIs.

WINDOW-BAR.

SPECIFICATION forming part of Letters Patent No. 377,624, dated February '7, 1888.

Application filed September 3, 1887. Serial No. 248,746. (N 0 model.)

To all whom it may concern.-

Be it known that I, KARL KUENZEL, a citizen of Prussia, residing at Kensington, in the county of Cook and State of Illinois, have invented certain new .and useful Improvements in Window-Bars, which are fully set forth in the following specification, reference being had to the accompanying drawings, forming a part hereof, and in which- Figure 1 shows a front view of my improved window-bars, and Fig. 2 a side or edge view on the plane yy of Fig. 1. Fig. 3 shows a modification of Fig. 1. Fig. 4 shows an edge view of the hooks it used in Fig. 8. Fig. 5 shows the bolt 7' of Fig. 3 in plan View, enlarged. Fig. 6 shows the hooks h of Fig. 1 in perspective, enlarged. Fig. 7 shows an enlarged view of the parts 6 f and part of c. Fig. 8 shows a key in section to be applied to the head f. Fig. 9 shows an eye, 13, of the bolt j in side view.

Like letters refer to like parts.

The object of my invention is to construct window bars or grating in such a manner as to be secure against thieves, and at the same time so as to be readily removable from the inside.

To accomplish my purpose I construct a lattice-work'of steel or iron bars, a b 0, securely fastened together and at suitable in tervals,substantially as shown in drawings. The cross-bars or extend beyond the'lnner edge of the casing of into hooks h, attached to said casing. Said hooks it have a guard or lip upon their outer side, as clearly shown in Figs. 2 and 6, which prevents any longitudinal motion of the cross-bars a. The vertical center bar, a, is extended so as to reach about to the center of the base-board of the room, and, when necessary, curved so as to pass over the projecting edge of the window-sill, as shown and which at its lower end is secured to the nut e by means of a bolt passing through it provided with a head in the form of a truncated pyramid. Said bolt is turned by a specially-provided wrench or key, 9, having a socket corresponding to the form of the head of said bolt.

The object of constructing the bolt-head in said manner is to cause a wrench to slip off when applied by hands reaching through the grating, pressure in the vertical direction of the bolt being necessary to keep the key at work. I

The object of the hinged is for the purpose of folding the hasp 0 upon the grating, so that it may more readily'be handled and set down 7 p on the floor. Y

The nut e is bolted or secured to the baseboard or wall, as shown; or the bolt f may cut its thread into the wood of the wall, if desired.

In Fig. 3 the central vertical bar, ;c, slides loosely in eyes of, fastened to the cross-bars a, and to said vertical bar are attached a series of one or more sheet-metal plates, j, which expand on each side of the bar 0 inthe form of an inclined plane or wedge, near the upper end of which the sides again become parallel. Opposite said plates j are forked horizontal bolts j, working loosely in eyes a, attached to the bars I). Said plates j work between the forked ends of the bolts j, and the outer ends of said bolts j extend into eyes t, attached to.

the window-casing, the holes in said eyes t not passing through, so as to prevent the bolts passing through them. A spiral spring, j resting against the bar I) or the eye through which the bolt slides at one end and against a 1 nut or pin on the bolt at its other end, throws the bolt toward 0, when the bar 0 is raised; but when the grating is in place and the bar ,0 drawn down so as to lock the hasp c the wedge-shaped pieces j throw the bolts. outward'into' the eyes i, and thus securely lock the grating into its place. The hooks h h being open at thetop permit the grating to be lifted up and out of the hooks whenever the hasp c is released.

From the description already given the full operation of my device can readily be understood. a I

What I claim is-- 1. Awindow-grating consisting of crossed bars united and supported on the face of the window-frame by means of hooksopen' at the and held in place by a bolt provided with a plates 7' springs f and bolts j, a hinged hasp, tapering head, substantially as specified. and abolt provided with a tapering head, sub- 2. A window-grating consisting of crossed stantiaily as specified. bars united and supported on the face of the KARL KUENZEL. 5 window-casing by means of hooks open at the WVitnesses:

top, in combination with eyes i, and a ver- WM. ZIMMERMAN, tically-movable bar provided with locking- ANTON FONGNER. 

